Door closer and check



Dec. 25, 1923. 11,478,376

B. S. BERNHARD .DOOR CLOSER AND CHECK 2 sneets sheet 1' Filed April 12,1.922

Dec. 25 T1923.

' B. S. BERNHARD DdoR CLOSER AND CHECK Filed April 12 1.922 2 sheetssheet 2 I Q. A T TERA/E Patented cc. 25, .1923;

BENJAMIN Si BERNHARD, 0F BOSTON, SACHUSETTS.

DOOR CLOSER,- AND CHECK.

Application filed April 12,

T 0 all whom it may concern:

Be it known that I, BENJAMIN S. BERN- HARD, a citizen of the UnitedStates, and resident of Boston, in the county ofSuifolk and State ofMassachusetts, have invented a new and useful Door Closer and Check, ofwhich the following is a specification.

My invention relates to means for closing and checking doors or the likeand one feature. thereof consists in mounting the parts so that theywill be entirely invisible when the door or the-like is closed.

Another feature is a flexible connecting element which. is the onlymovable part of the device visible between the door and, frame when thedoor is open. I

Another feature is a rotary member to operate the closing and checkingmechanism, said rotary member having wound upon it said flexible member.

Other features will be pointed out below.

ln the drawings- Figure l is a plan, partly in section, of :1 deviceembodying my invention;

Figure 2 is a front elevation of the same; Figure}; is an end elevationof the parts mounted in the door and looking from the left;. ,i

l igiire v4' is a section on line 4-4 of ltiigure fZA-and showingcertain other parts in I ection? 1 Figure-*5 is a sectional view takenon line 5 5 of'Figure l;

' Figured is an elevation, partly in section, .slio'wingthe-door closedFigure "7 is a" section on line 7-7 of higurefiyand Figure 8 is asectional detail described elow. 1

ln the drawing; 1 show a right-handed hinged door but my invention isapplicable to doors or the like which have left-handed hinged mountingsor other mountings than hinged.

The door frame A is recessed to receive :in anchoring member A, theouter portion of which is flush with the frame and is held by screws aand a and has an opening (1:

suitably formed for universal swinging connection with member (1 whichhas connection with fiexiblemember [k which is preferably a metal strapbut might be of any suitable shape or material, the preferred connectionbeing made by passing the end of member A through opening a in member a:and then attaching a vided with rack B. engaging pinion ample, casing Bis to 1922. Serial No. 551,902.

holding element such as rivet a seated. in recess w".

Embedded in the door B is a cylindrical casing 13 having a plate portion6, the outer portion of which is flush with the edge of the door, saidplate portion being held in position by screws b, and having aperforation b to permit passage of member A Bushing 12 carries thimble bwhich furnishes one abutment for spring B and said thimble, andconsequently the spring may be adjusted by screw b. The other abutmentof the spring is B on shaft B, to which is pinned flanged drum B, aroundwhich is wound the end of member A .said end being connected to said.drum at B The piston is provided with a strengthening web and with ballvalves of a well-known type and conduit B? leads from one end of thecasing nearly to the other end, said conduit being controlled by valveB, the head of which is in threaded engagement with a threaded recess inthe ca ing.

The casing B has a boss I) having-a ceni I'Ill opening large enough topermit passage iherethrough of bearing member 6' which may be thenthreaded into place, after which the shaft B with its pinion is put inplace through said opening and then bearing member 12 is put in place,after which the drum is pinned to shaft B".

The casing is preferably completely filled with suitable fluid and asthe door is moved from its closed position the member at swings and theflexible member A is unwound, rotating the drum and consequently thepinion and moves the piston to the left as in Figure 4, compressing thespring and permitting most of the fluid to flow past the balls of theball valves and some through the piston B proconduit B". When the dooris released the i nal position and thereupon the fluid passes throughconduit 13* but can not return past the balls and the drum actuated bythe rack and pinion winds up member A? and thereby closes the door, thechecking action being caused by the fluid passing through conduit B andcontrolled by valve B and when the door is closed as shown in Figure 6there will be absolutely no portion of the device visible from eitherside of the door.

In installing my device, in case, for exbe mounted in the out and holdit by against the face of then inserted in the by screws b and the isinserted in the frame and a and a and then the clamp of putting strap A6 in plate 6 through may be lowered into open- %Vhat I claim is:

1. A device of the character described comprising a door member; asupporting member therefor; a stationary casing supported by one of saidmembers; a piston fitting within, and cooperating with, said casing; aspring within the casing and tending normally to actuate said piston toclose the door, said piston formin an abutment for said spring; meanswithin the casing and acting on said piston to check the closing actionof said piston; a rotary element operatively connected with said pistonto close the door; and a flexible element operatively connected withsaid rotary element to close the door and extending substantially to andbeing connected with, the other of said members.

2. A device of the character described comprising a door member; asupporting member therefor; a stationary casing supported by one of saidmembers; a piston fitting within, and cooperating with, said casing; aspring within the casing and tending normally to actuate said piston toclose the door, said piston forming an abutment for said spring; meanswithin the casing and acting on said piston-to check the closingacpiston; a rotary element operation of said tively connected with saidpiston to close the door; and a flexible element operatively connectedwith said rotary element to close the door, said flexible element havingdirect connection with the other of said members.

3. A device of the character described comprising a door member; asupporting member therefor; a stationary casing supported by one of saidmembers; a piston titting within, and cooperating with, said easing; aspring within the casing and tending normally to actuate said piston toclose the door, said piston forming an abutment for said spring; meanswithin the casing and acting on said piston to check the closing actionof said piston; a rotary element operatively connected with said pistonto close the door; and a flexible element operatively connected withsaid rotary element to close the door and having swinging connectionwith the other of said members.

4:. A device of the character described comprising a door member; asupporting member therefor; astationary casing embedded in one of saidmembers; a piston fitmergers ting Within, and cooperating with, theeasing; a spring within the casing and tending normally to actuate saidpiston to close the door, said piston forming an abutment for saidspring; means within said casing and acting on said piston to check theclosing action of said piston; a rotary element operatively connectedwith said piston to close the door; and a flexible element engaging saidrotary member to close the door and having operative connection with theother of said members.

A device of the character described comprising a door member; asupporting ,member therefor; a stationary casing embedded in one of saidmembers; a piston fitting within, and cooperating with, the easing; aspring within the casing and tending normally to actuate said piston toclose the door, said piston forming an abutment for said spring; meansWithin said casin and acting on said piston to check the closing actionof said piston; a rotary element operatively connected with said pistonto close the door; and a flexible element engaging said rotary member toclose the door and having a portion extending longitudinally from saidrotary element substantially to the other of said members when the dooris closed, said flexible element operatively connecting said rotaryelement and said other of said members.

6. A device of the character described comprising a door member; asupporting member therefor; a stationary casing embedded in one of saidmembers; a piston fitting within, and coo crating with, the casing; a 5ring within is e casing and tend ing norma ly to actuate said piston toclose the door, said piston forming an abutment for said spring; meanswithin said casing" and acting on said piston to checkthe closing actionof said piston; a flexible element operatively connected to the other ofsaid members; means operatively connecting said flexible element andsaid piston to close the door.

7. A device of the character described comprising a door member; asupporting member therefor; a stationary casing embedded in one of saidmembers; a piston within, and cooperating with the casing; a springwithin the casing and tending normally to actuate said piston to closethe door, said piston formin an abutment for said spring; means withinsaid casing and acting on said piston to check the closing action ofsaid piston; a flexible element operatively connected to the other ofsaid members; and means including a rotary member operatively connectingsaid flexible element and said piston, said rotary member being actuatedby said piston and actuating said flexible element to close the door.

8. A device of the character described inte ers comprising a doormember; a snpporting member therefor; a stationary casing embedded inone of said members; a piston within, and cooperating with, the casing;a spring within the casing and tending normally to actuate said pistonto close the door, said piston forming an abutment for said spring;

casing and. acting to check the closing action ofsaid piston; a flexibleelement'operatively connected to the othero'ji said mombers; andmeans-operatively connecting sai flexible element and said piston toclose the cor.

9. A device Of the character described comprisin a door memher; asnpportirig member t eretor; a stationary casing embedded in one of saidmembers; a piston fitting within, and cooperativei engaging, saidcasing; a spring within sai casing and tending normaily to actuate saidpiston to close the door; means within said casing and acting on saidpiston to check the closing action of said piston; a rotary elementoperated through said piston; and a flexible element operativelyconnected to the other of. said members andhaving a Windin connectionwith said rotary element, the latter actuating the flexible element toclose the door member.

10. A device of the character described comprising a door member; asupporting member therefor; a stationary casing embedded in one ofsaidmembers; a piston fluid, means snhstantially filling said d withsaid drum, the latte fittingvvithin, and cooperatively engaging, saidcasing; a spring within said casing and tending normally to actuate saidpiston to close the door; means within said casing and acting on saidpiston to check the closing action of said piston; a rotary elementoperated through said pistong'a drum mounted on said rotary elementoutside of said casing; and a flexible element operatively connected tothe other of said members and having a winging connection actuating theflexible element to close the door member.

11. A device of the character described comprising a door member; asupporting member therefor; a stationary casing embedded in one of saidmembers; a piston fitting Within, and cooperative]. engaging, saidcasingg-a spring Within sai casing and tending normally to actuate saidpiston to close the door; means Within said casing and acting on saidpiston to check the closing action oi said piston; a rotary elementoperated through said piston; and a flexible element operativelyconnected to the other of said members and having a winding connectionwith said rotary element, the latter actuating the flexible element toclose the door member, and the member-in which said casing is embeddedbeing formed to permit sidevvise movement of the flexible element duringthe rotation of the rotary member.

BENJAMIN S. BERNHARD.

